General help

Transparent Background

We'd like to customize our Moodle to make it look more like our website.

We've added our logo, fonts, colours and even our primary imagery to the background of the page. The only trouble is the main body of the html sits on top of the background image. We've managed to make the background colour of the mainbody of the page 50% transparent, however it has also made all of our text transparent as well.

Is there some way anybody knows of that we can maintain the transparent background whilst making the text a solid colour?